The mixed number 129 3/5 written as an improper fraction is 648/5
To turn the mixed number 129 3/5 into an improper fraction, use these simple steps:
First, multiply the whole number by the denominator of the fractional part: 129 × 5 = 645.
After that, add the result to the numerator of the fractional part: 645 + 3 = 648.
Next, Write the sum of the previous step on the original denominator: 648/5.
This means that 129 3/5, as an improper fraction, equals 648/5.
See also: 129 3/5 as a decimal